The Czech international was in superb form at West Bromwich Albion on Saturday, scoring twice as Arsenal claimed a morale-boosting victory.
Tomas has got quality and he's got a change of rhythm in the middle of the park that makes a difference
Although the hosts put them under concerted pressure in the closing stages, The Gunners held on and Arteta was pleased to claim three vital points.
“We dominated the game,” he told Arsenal Player. “We had the better chances but when Per was sent off and we gave a penalty away, it was game on and we had to hang on.
“Credit to the lads, we defended well and the goalkeeper made some really good saves. We're delighted with the points.
“Tomas has got quality and he's got a change of rhythm in the middle of the park that makes a difference. The fact that he made a difference here is massive for us.
“Now we have to keep going and keep winning. We have three games at home now so let's focus on that.”Copyright 2016 The Arsenal Football Club plc. Permission to use quotations from this article is granted subject to appropriate credit being given to www.arsenal.com as the source